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Hello,Have you been on the hp website?Only XP drivers are available though....

www.hp.com/support

select your country; then your product ; ie, Presario M2000Then you'll get a choice of model, after that a choice of 6 items plus if you scroll to the bottom of that screen, faq's and forum items related to the model.Hope this helps you!Regards,nicam49

At first glance, we wouldn't elect the Compaq Presario M2000 the
laptop we'd most enjoy cramming into a carry-on bag, but this
economical desktop replacement is lighter than it looks, and it performs
solidly.
The Compaq Presario M2000 is big and square--1.8 inches
tall, 13.2 inches wide, and 11 inches deep--but it's very portable at
6.4 pounds. The power adapter adds less than a pound more.

You need to download the drivers from the Compaq/HP WEB support/download page. Make sure you select your model laptop and the XP or Vista Windows version of the drivers you require and install them. Use this link to download the drivers: -www.compaq.com/country/cpq_support.html

You need to download the drivers from the Compaq/HP WEB support/download page. Make sure you select your model laptop and the XP Windows or Vista version of the drivers you require and install them.Use this link to download the drivershttp://h18000.www1.hp.com/cpq-country/cpq_support.html

Hello,
This is true, you will not be able to charge the battery without the correct charger. For mostly all laptops, when the charger is not maintaining a charge, it is time for a new one. However, it does not have to be the manufacturer's adapter, but I recommend purchasing the battery made for the Compaq Presario M2000 Notebook.
NextTag.com has decent deals on these adapters.
http://www.nextag.com/ac-adapter-compaq-presario-m2000/search-html

I hope this helps. Please let me know if you have any other questions.
Thank You,
Raph30